Edward william mackenzie-hughes



(No Model.) E. W. M. HUGHES.

DIE FOR FORMING JOURNAL BOXES.

Patented Apr. 28, 1891.

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EDIVARD IVILLIAM MACKENZIE-I-IUGHES, OF CHICAGO, ILLINOIS, ASSIGNOR TOI-IIMSELF, AND EDWARD N. DICKERSON, OF NEWT YORK, N. Y.

DIE FOR FORIVIING SPECIFICATION forming part Of Letters Patent No.451,052, dated April 28, 1891.

Application fled January 30, 1891. Serial No. 379,615. (No model.)

T0 @ZZ whom it muy concern.-

Be it known that I, EDWARD WILLIAM MACKENZIE-HUGHES, of Chicago, Cookcounty, State of Illinois, have invented a new and useful Improvement inAutomatic Contracting Dies for Forming Journal-Boxes, of which thefollowing is a full, true, and exact description, reference being had tothe accompanying drawings.

This invention relates to an improvement in dies for forming car-journalboxes from metal blanks; and it consists in the construction and novelcombination of parts, as hereinafter set forth.

In the accompanying drawings, Figure I is a top or plan view of thelower or female die. Fig. 2 is a plan view of the upper or male die.Fig. 3 is a vertical section of the two dies on the line .t x of Fig. 2.Fig. 4 is a vertical section on the line y gj of Fig. l and at rightangles to Fig. 8. Fig. 5 is a plan View of a blank from which the box isformed, and Fig. G is an end view thereof.

Referring by letter to the drawings, A designates the lower or femaledie, having a suitable base A. This mold A is substantially rectangularin cross-section and has its upper end portions flared outwardly andupwardly, as at A3. The inner surface of the portion below the flaredportions corresponds in shape to the outer conformation of the articleformed in the die, which in this case is a journal-box, and channels aextend, down the end walls and along the bottom of the die to receivethe ribs a on the blank. It may be here stated that the space betweenthe upper inner ends of the Haring portions equals the length of thebox-blank.

B represents the vertically-movable upper or male die, consisting,essentially, of a boxlike portion B', having a cross-head l) andsuspended formers C C', the outer ones C conforming outwardly to theinterior of the journal-box. The outer formers C are designed to remainstationary during a portion of the upward movement of the part B. AS ameans thereto, the upper rods of the formers C are provided with shanksc, which pass loosely through holes in the cross-head l) vand have headsat the upper end larger than the holes through the cross-head. The innerformers C are rigidly attached to the crosshead b, and, as shown, theinner formers are wedge shaped longitudinally. The inner surfaces of theformers C are inclined to con- 5 5 form to the wedge shape of theformers C. Certain of the formers C are provided with a longitudinalchannel d to accommodate a ange d of the blank.

In operation the upper die is raised above 6o' the lower die and theblank, preferably in a heated condition,'is laid upon the upper ends ofthe inclines A3. The upper' die is then forced downward by suitablemeans-such, for instance, as hydraulic pressureuntil 6 5 the blank ispressed into the female die, the formers being in the condition shown inFig.

4f. The male die is then drawn upward, and

it will be seen by reference to Fig. 3 that the formers C remain intheir downward position 7o du ring a short upward movement of the part Band the wedges C. By the removal of the wedge C the formers C arerendered free to move slightly inward away from the formed box. Thenthepart I5 is raised sufficient-1y 75 high to engage the heads of theshank c, the formers C are moved upwardly.

That I claim as my invention, and desire to secure by Letters Patent,is-

I. In a die, the combination, with the fe- 8o male die, of the movableupper die consisting of upper and lower portions, the upper portionhaving a movement independently of thc lower portion, substantially asdescribed.

2. In a die, the combination, with the lower or female die, of the upperdie consisting of a portion having a cross-head and depending foi-mers,the said cross-head portion having a movement independent of certain ofthe depending portions, substantially as described.,7 9o

3. The combination, with the lower die, of the upper die consisting ofthe portion having the depending wedge-shaped portion rigidly securedthereto and the outer depending portions or formers movably connectedwith the upper portion, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDWARD WILLIAM MACKENZIE-HUGIIES.

Witnesses:

H. COUTANT, S. O. EDMonns.

